Use cargo chef to optimize Docker build

Author: Kobzol

Dockerfile

@@ -1,11 +1,13 @@
 FROM node:18 as frontend
 
-COPY ./site ./site
+COPY ./site/frontend ./site/frontend
 RUN cd site/frontend && npm ci
 RUN cd site/frontend && npm run check
 RUN cd site/frontend && npm run build
 
-FROM ubuntu:20.04 as build
+FROM ubuntu:20.04 as base
+
+ENV CARGO_REGISTRIES_CRATES_IO_PROTOCOL=sparse
 
 RUN apt-get update -y && \
     DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
@@ -23,6 +25,17 @@ RUN apt-get update -y && \
 RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- \
     --default-toolchain stable --profile minimal -y
 
+RUN bash -c 'source $HOME/.cargo/env && cargo install cargo-chef'
+
+FROM base AS planner
+COPY . .
+RUN bash -c 'source $HOME/.cargo/env && cargo chef prepare --recipe-path recipe.json'
+
+FROM base as build
+COPY --from=planner recipe.json recipe.json
+
+RUN bash -c 'source $HOME/.cargo/env && cargo chef cook --release --recipe-path recipe.json'
+
 COPY ./Cargo.lock ./Cargo.lock
 COPY ./Cargo.toml ./Cargo.toml
 COPY ./collector ./collector